urogenital sinus

noun
plural urogenital sinuses

Definition of urogenital sinus 

1 : the ventral part of the embryonic mammalian cloaca that is formed by the growth of a fold dividing the cloaca where the hindgut and allantois meet and that eventually forms the neck of the bladder and some parts of the urinary and reproductive systems

2 : a rare urogenital abnormality in which the urethral and vaginal tracts open into a common channel and share a single opening

First Known Use of urogenital sinus

1868, in the meaning defined at sense 1

Keep scrolling for more

Learn More about urogenital sinus

Share urogenital sinus

Dictionary Entries near urogenital sinus

urodele

urogaster

urogenital

urogenital sinus

urogenous

Uroglena

urogomphus

Statistics for urogenital sinus

Last Updated

21 Aug 2018

Look-up Popularity

Time Traveler for urogenital sinus

The first known use of urogenital sinus was in 1868

See more words from the same year

Keep scrolling for more

More Definitions for urogenital sinus

urogenital sinus

noun

Medical Definition of urogenital sinus 

: the ventral part of the embryonic mammalian cloaca that is formed by the growth of a fold dividing the cloaca where the gut and allantois meet and that eventually forms the neck of the bladder and some of the more distal portions of the genitourinary tract

Comments on urogenital sinus

What made you want to look up urogenital sinus? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a magnificent or impressive array

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!